A girl I like and I got into an argument? How do we make the transition back to talking

[Kay]

and dating again? I and a girl I like and have been dating in college and who is currently abroad got into a heated argument online yesterday. I got really angry that she called me bitch after I've told her multiple times that I wouldn't tolerate that kind of disrespect. I then unfriended her on facebook. In her defense, she said I called her dopey which resulted in her calling me bitch since she has also told me she didn't like to be called that. I disagreed that was alright and called her a cunt for calling me a bitch and trying to defend her actions. She got really angry but then said that we should put this argument behind us and that she would send me a friend request on facebook to which I accepted. How do I make the transition back to where we were and still stand my ground of not tolerating future disrespect from her?